Q- The airport B is due north of airport A. On a particular day the velocity of wind is (80i+25j) km/h. Relative to the air an aircraft flies with constant speed 208 km/h. When the aircraft flies directly from A to B
(a) Show its speed relative to the ground is 217km/h
(b)After flying from A to B the aircraft returns directly to A. If the time taken on the outward journey is T₁ hours and return journey is T₂ hours, find T₁/T₂

Solution: